Home / 747,628.60-1,121,442.90-449,030.20

Finding the Fourth Proportional to 747,628.60, 1,121,442.90 and 449,030.20

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Solution

The fourth proportional to 747,628.60, 1,121,442.90 and 449,030.20 is: 673,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,628.60 : 1,121,442.90 = 449,030.20 : x
  2. Step 2: Convert to fraction form
    747,628.60/1,121,442.90 = 449,030.20/x
  3. Step 3: Cross multiply
    747,628.60x = 1,121,442.90 × 449,030.20
  4. Step 4: Simplify right side
    747,628.60x = 503,561,729,675.58
  5. Step 5: Solve for x
    x = 503,561,729,675.58/747,628.60
  6. Step 6: Final answer
    x = 673,545.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.